As a sidenote, if you have to fight a stubborn anumal (big stock), they will sometimes lay down and refuse to stand.
First try is a knock on the ribs, use an elbow or your knee. These I learned from the vet, but it doesn't always work.
The most effective one is closing the mouth and nostrils...you can do that to a cow with some arm strength.
Tops one minute, and the animal is up! Not being able to breath or feeling water in your lungs simply makes your life go by in a dash.
Animals will panick from that one, that is but the beginning of what a human (hopefully intelligent enough) will feel. Being held in water in a closed chamber untill you have a near drowning experience must be an absolute nightmare. Ever wondered if there were actually cases of drowning...hush hush....
IMHO, like Lazs said
"It is torture. there is no doubt. I do not believe in my government having the right to torture anyone. That is a very bad and slippery slope to be on. governments should be held to very high standards so far as torture goes."